Question: Which is the dominion of the British Empire of the participation in World War II?
Paraphrase: Which is the domain of the British Realm of the cooperation in World War II?
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P1344 wd:Q362 . ?sbj wdt:P31 wd:Q223832 } 
Answer: Australia